Ok not sure how to explain this but I have a picture on my phone... whenever I view ANY pictures on my phone they are fine nothing wrong with the display or anything...

However just recently whenever I use a picture as my desktop about 3/4 of the way up there is like a "line" or something and everything above it is a different "shade" a little lighter but enough to be noticable and enough to drive me nuts...

I have attached a screenshot of my desktop

If you look close about 3/4 of the way up you can see the change

Now here is a copy of the same picture just being displayed by the phone through the view pictures option